H. Idoudi, M. Molnar, A. Belghith, and B. Cousin. Information and Communications Technology, 2007. ICICT 2007. ITI
5th International Conference on, page 327 -332. (December 2007)
S. Zhong, J. Chen, and Y. Yang. INFOCOM 2003. Twenty-Second Annual Joint Conference of the IEEE Computer
and Communications. IEEE Societies, 3, page 1987 - 1997 vol.3. (2003)